Broadband Seismic Technology and Beyond: Part II: Exorcizing Seismic Ghosts

Lasse Amundsen, Martin Landrø

GEO ExPro Magazine

... analogy, ‘ghosts’. Lindsey (1960) presented a ghost removal or deghosting solution by observing that a downgoing source signal of unit amplitude followed...

Application of deghosting method based on Greens theorem in reservoir description of Bohai Bay

Shaoxuan Li, Jiangfeng Zheng, Lei Gao, Zhiping Zhao

International Meeting for Applied Geoscience and Energy (IMAGE)

... CNOOC (China National Offshore Oil Corporation) Ltd Tianjin Branch, Tianjin, P.R.China Summary Ghost wave is one of the most important factors affecting...

Broadband Data from Flat Streamers: Considerations for Acquisition and Processing

Phil Fontona, Edward Hager

Indonesian Petroleum Association

... measurements, alignment of over-under streamers and estimations of the ghost filter. If the raw measurements are summed using a “dumb” approach (amplitude domain...

Broadband Seismic Technology and Beyond: Part VI: Towards a Ghost-Free Solution

Lasse Amundsen, Martin Landrø, Eivind Frømyr

GEO ExPro Magazine

... the ghost (dotted line) has the same energy as the down-going direct wave (solid line), while with a multi-level source only the down-going direct wave...

A New Seismic Method to Significantly Improve Deeper Data Character and Interpretability

Andrew Long, Guillaume Cambois, Gregg Parkes, Anders Mattsson, Terje Lundsten, Mazin Farouki

Indonesian Petroleum Association

... of the up-going wave. This way the energy of the ghost (surface-reflected up-going wave) is reduced compared to that of the primary pulse. In this paper...

A case study of broadband processing in extremely shallow water environment of Bohai Bay

Jiangbo Huang, Xinyi Duan, Dekui Xu, Pingping Zhang

International Meeting for Applied Geoscience and Energy (IMAGE)

... the spectra analysis results (figure 1e), the source or receiver ghost will Fourth International Meeting for Applied Geoscience & Energy...

Abstract: Variable Depth Streamer Acquisition: Enhancing Interpretation with Broadband Marine Seismic; #90174 (2014)

R. Soubaras, R. Dowle, and R. Sablon

Search and Discovery.com

... hydrophones only to provide robust removal of the receiver ghost across the full bandwidth of the recorded primary energy. A new deghosting algorithm...

Pre-Migration Receiver Deghosting and Amplitude Fidelity: A Case Study From NWS Australia

Search and Discovery.com

Abstracts: S-wave Attenuation within the Weathering Layer of an Alberta Heavy Oil Field; #90173 (2015)

Kristof De Meersman

Search and Discovery.com

... back down into the earth. This later, secondary arrival consists of down-going, or ghost energy. In principle, it should be possible to estimate...

Australian Insights into Streamer Technology Innovations

Andrew Long

Petroleum Exploration Society of Australia (PESA)

... processing of t he measured 7 mdepth - 15m depth I 0.25 pressure and velocity data wi ll completely cance l the amplitude of t he ghost event...

Marine Seismic Sources: Part I: Air-Guns for Non Experts

Lasse Amundsen, Martin Landrø

GEO ExPro Magazine

...-to-peak amplitude P-P (the distance between the positive peak of the primary and negative peak of the ghost) is 2.3 bar-m. The far-field peak-to-bubble...

First Look at Seismic Data from a Towed Dual-Sensor Streamer

Andrew Long, Natasha Hendrick, Rune Tenghamn

Petroleum Exploration Society of Australia (PESA)

... the benefit of deghosting to the amplitude spectra, both in terms of boosting low and higher frequencies normally lost because of the receiver ghost...

Abstract: Deterministic Marine Deghosting: Tutorial and Recent Advances; #90224 (2015)

Mike J. Perz and Hassan Masoomzadeh

Search and Discovery.com

... processing. In the first part of this paper, we provide a tutorial-style description of the ghost phenomenon and its adverse effect on resolution...

Enhancing Resolution and Improving Imaging: The New Dual-Sensor Seismic Streamer

Natasha Hendrick, Andrew Long, Rune Tenghamn

Indonesian Petroleum Association

... understood that if seismic energy could be acquired using co-located hydrophones and velocity sensors, then by properly combining their signals, ghost...

Wide-Band Ghost Elimination: ABSTRACT

William Schneider, Milo M. Backus, John P. Burg, Earl C. Wisler

AAPG Bulletin

... technique has been developed which makes it possible to stack two or more similar shots from different depths in such a fashion that "ghost" energy may...

Different Approaches of Combining Geophone and Hydrophone Data From OBC Seismic at Bintuni-Berau Bay, Papua

Tepy Septyana, Yayat Supriatna, Supriyono, Greg Schurter, James Keggin, Jean-Jacques Chameau

Indonesian Petroleum Association

... for ghost energy (Figure 7). This gave us the idea of analyzing calibrated geophone and hydrophone components on the two perpendicular axes of a hodogram...

Broadband Seismic Technology and Beyond: Part VII: CGGs BroadSeis „ A Change of Thinking

Lesse Amundsen, Martin Landrø

GEO ExPro Magazine

... deconvolution. After conventional migration, the upgoing primary energy is focused at the reflector position while the downgoing ghost energy is unfocused...

Is There Value in Reprocessing Legacy Marine Streamer Seismic for Improved Resolution? A Recent Example from Indonesia

Dmitri Skorinski, Ted Manning

Indonesian Petroleum Association

... that the receiver side ghost is removed, and that the level of low frequency energy is consequently enhanced. It is also obvious that some low frequency linear...

Fullband imaging

Zhengmin Zhang, Jiwei Jia, Geping Fu, Hao Zhang, David Chow, Barry Hung, Ian Anstey, Wai Leong Lai

Petroleum Exploration Society of Australia (PESA)

... underneath, making them notches due to the ghost are filled up in the amplitude spectrum, resulting in more low-frequency and difficult to delineate...

A Step Change in Seismic Imaging … Using a Unique Ghost Free Source and Receiver System; #41449 (2014)

Per Eivind Dhelie, Robert Sorley, Torben Hoy, David Lippett

Search and Discovery.com

...A Step Change in Seismic Imaging … Using a Unique Ghost Free Source and Receiver System; #41449 (2014) Per Eivind Dhelie, Robert Sorley, Torben Hoy...

Low-Frequency De-Ghosting Method to Enhance Basement Layer Continuity Image in Foxtrot South East Area, North West Java Sea

Ryan Bobby Andika, Hudzaifah, Deny Martian, Nurudin Mahmud, Sri Sadono

Indonesian Petroleum Association

... the source is superimposed upon the ghost energy (Sheriff and Geldart 1995). The ghost signal or energy itself could be produced from both...

Marine Broadband Seismic Data Acquisition: PETRONAS Perspective (Paper A1)

C. F. Low, S. Chandola, Z. M. Zawawi, A. Aziz Muhamad, S. Kumar, M. Shah Sulaiman

Geological Society of Malaysia (GSM)

.... The future dual sensor streamer Fig.1: Receiver ghost amplitude spectra for a hydrophone towed at 6 m acquisition in such geological setting should...

Experiences with Dual-Sensor Towed Streamer Acquisition and Imaging in the Eastern Mediterranean, #41831 (2016).

Martin Widmaier, Oystein Lie

Search and Discovery.com

... in the Eastern Mediterranean region during the last years. Dual-Sensor Streamer Technology and Wavefield Separation Ghost reflections from the sea surface have...

The Future of Marine Seismic Acquisition?

Luc Haumonté

GEO ExPro Magazine

...) Z (geophone) Amplitude (%) Sum Frequency (Hz) Full bandwidth is attained by the cancellation of the ghost notch through PZ summation. Frequency...

Abstract: 3C Deghosting for Refraction Time-lapse Monitoring; #90187 (2014)

P. B. Wills and K. De Meersman

Search and Discovery.com

... with good S/N, we see a high amplitude ghost reflection. As the receiver moves from deep (right) to shallow (left), the ghost delay becomes smaller...